<template>
  <div>
    <el-container>
      <el-header class="homeHeader">
        <div class="title">川大云在线办公系统（Scuer-Ofs）</div>
        <!-- 1-1 添加在线聊天入口 -->
        <div>
          <el-button
            type="text"
            icon="el-icon-bell"
            size="normal"
            style="margin-right: 8px; color: black"
            @click="goChar"
          ></el-button>
          <el-dropdown class="userInfo" @command="commandHandler">
            <span class="el-dropdown-link">
              {{ user.name }}<i><img :src="user.userFace" /></i>
              <!-- {{ user.name }}<i><img src="../assets/1.jpg" /></i> -->
            </span>
            <el-dropdown-menu slot="dropdown">
              <el-dropdown-item command="userinfo">个人中心</el-dropdown-item>
              <el-dropdown-item command="setting">设置</el-dropdown-item>
              <el-dropdown-item command="logout">注销登录</el-dropdown-item>
            </el-dropdown-menu>
          </el-dropdown>
        </div>
      </el-header>
      <el-container>
        <el-aside width="200px">
          <!-- 1、添加 router  -->
          <el-menu router unique-opened>
            <!-- 2、循环整个路由组件，不展示 hidden: true 的路由组件 -->
            <el-submenu
              :index="index + ''"
              v-for="(item, index) in routes"
              :key="index"
              v-if="!item.hidden"
            >
              <template slot="title"
                ><i
                  :class="item.iconCls"
                  style="color: black; margin-right: 5px"
                ></i>
                <span>{{ item.name }}</span>
              </template>
              <!-- 3、循环遍历子路由 -->
              <el-menu-item
                :index="children.path"
                v-for="(children, indexj) in item.children"
                :key="indexj"
              >
                {{ children.name }}
              </el-menu-item>
            </el-submenu>
          </el-menu>
        </el-aside>
        <el-main>
          <!-- 面包屑导航区域 -->
          <el-breadcrumb
            separator-class="el-icon-arrow-right"
            v-if="this.$router.currentRoute.path !== '/home'"
          >
            <el-breadcrumb-item :to="{ path: '/home' }"
              >首页</el-breadcrumb-item
            >
            <el-breadcrumb-item>{{
              this.$router.currentRoute.name
            }}</el-breadcrumb-item>
          </el-breadcrumb>
          <div
            class="homeWelcome"
            v-if="this.$router.currentRoute.path === '/home'"
          >
            欢迎来到川大云在线办公系统！
          </div>
          <!-- 路由点位符 -->
          <router-view class="homeRouterView" />
        </el-main>
      </el-container>
    </el-container>
  </div>
</template>

<script>
export default {
  name: "Home",
  data() {
    return {
      // 获取用户信息，将字符串转对象
      user: JSON.parse(window.sessionStorage.getItem("user")),
    };
  },
  computed: {
    // 从 vuex 获取 routes
    routes() {
      return this.$store.state.routes;
    },
  },
  methods: {
    // 1-2 进入在线聊天页面
    goChar() {
      this.$router.push("/chat");
    },
    // 注销登录
    commandHandler(command) {
      if (command === "logout") {
        // 弹框提示用户是否要删除
        this.$confirm("此操作将注销登录, 是否继续?", "提示", {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        })
          .then(() => {
            // 注销登录
            this.postRequest("/logout");
            // 清空用户信息
            window.sessionStorage.removeItem("tokenStr");
            window.sessionStorage.removeItem("user");
            // 路由替换到登录页面
            // this.$router.replace('/')
            // 清空菜单信息；在src/utils/menus.js 中初始化菜单信息
            this.$store.commit("initRoutes", []);
            this.$router.replace("/");
          })
          .catch(() => {
            this.$message({
              type: "info",
              message: "已取消注销登录",
            });
          });
      }
      if (command === "userinfo") {
        this.$router.push("/userinfo");
      }
    },
  },
};
</script>

<style scoped>
.homeHeader {
  background: #c75353;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 15px;
  box-sizing: border-box;
  font-size: xx-large;
}

.homeHeader .title {
  font-size: 30px;
  font-family: "Microsoft YaHei", "Times New Roman", Arial, Helvetica,
    sans-serif, "宋体";
  color: white;
}

.homeHeader .userInfo {
  cursor: pointer;
  color: rgb(56, 54, 54);
  font: 16px sans-serif;
  font-family: "Microsoft YaHei", "Times New Roman", Arial, Helvetica,
    sans-serif, "宋体";
}

.el-dropdown-link img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  margin-left: 8px;
  margin-top: 10px;
}

.homeWelcome {
  text-align: center;
  font-size: 30px;
  font-family: 华文楷体;
  color: #c75353;
  padding-top: 50px;
}

.homeRouterView {
  margin-top: 15px;
}
</style>